Dataman S4 - Manual (Page 12)

DATAMAN S4 MANUAL
12 Introduction to S4
the START, END, DEST as seen - it does not
restore their original values.
Paged EPROMS e.g. 27513
A Page has a special meaning for EPROMS
like the 27513, which is divided into pages of
16K bytes. S4 handles page mode EPROMS
as if they had straightforward contiguous
memory. Swapping pages is handled "behind
the scenes" without troubling the user.
Thus there is no apparent difference in the way
S4 handles a 27512, which is one single block
of 64k bytes, and a 27513, which is 4 pages of
16k bytes.
The user must be aware of the real difference,
however, and how it affects his system. Use of
these devices is described in manufacturer’s
literature.
FUNC Key
The FUNC key is used like a shift key to
access an extra set of functions. When waiting
for a function the prompt becomes * instead of
>.
Audible Tones
S4 makes a variety of beeping noises:
A single tone is made on acceptance of a key.
A double tone low-high is a rebuke that a key
is not acceptable.
During the execution of those commands
which take several seconds, "pips" are emitted
every half-second to tell you that the program
is working - except in the BURN routine, which
writes addresses to the display.